Question

Identify the product of the following reaction:

• A. Benzene diazonium halide
• B. Nitro benzene
• C. Sodium benzoate
• D. Benzene halide

Answer 1

The Correct Option is A

To determine the product of the reaction, we need to analyze the nature of the chemical reaction involved. The reaction in question pertains to the chemistry of benzene and its derivatives, particularly involving the transformation of primary aromatic amines into diazonium salts.

In general, when an aromatic amine such as aniline (C₆H₅NH₂) is treated with nitrous acid (HNO₂, usually generated in situ from sodium nitrite (NaNO₂) and a mineral acid like HCl), the primary product is a diazonium salt. This reaction is conducted at low temperatures, typically 0-5°C, to prevent further decomposition of the diazonium compound.

The equation representing this process is as follows:

C₆H₅NH₂ + HNO₂ + HX → C₆H₅N₂⁺X⁻ + 2H₂O

Here, C₆H₅N₂⁺X⁻ is the benzene diazonium halide, where X represents a halide ion derived from the mineral acid used (such as chloride, bromide, etc.).

This diazonium salt is a crucial intermediate in the synthesis of various aromatic compounds, used in dye and pigment formation.

Based on this fundamental understanding of the reaction mechanism, the correct product formed is the benzene diazonium halide.

Correct Answer: Benzene diazonium halide